ACER EC.J1901.001 Projector Lamp Replacement Northstar AV sells OEM (Original Equipment Manufacturer) Lamps - Philips, Osram/Sylvania & SHP brand lamps inside of OEM spec housings. We DO NOT sell generic or compatible replacement lamps. Projector Lamp Model: EC.J1901.001 Compatible Projectors Models: Optoma NOBO X16P Optoma EP729 Optoma EzPro 729 ViewSonic PJ256D Acer PD322 NEC LT20 Average Lamp Hours: 2000-3000 Hours Warranty: 180 Day Warranty (From Date of Install)